We are aware of, and have been discussing the eternal melee vs ranged debate internally. Ranged is generally able to push further for a number of reasons, mostly due to the intrinsic benefits of not being in melee range, haha. It’s a very complex matter, particularly when infinite scaling is involved, but we have certainly been discussing the topic of how ranged tends to pull ahead of melee at high corruption (about 600-800C~) as the unavoidable attacks for melee start becoming unsurvivable.
Generally for balance, we shoot for all reasonable builds to complete around 300C. Of course, different people set different goals for themselves, and may only consider clearing 1000C to be ‘viable’, but roughly 300 is what we shoot for. As far as I’m aware, Spellblade is capable of this with a number of builds. Of course, we do listen very closely to feedback, so if we get a bunch of feedback about the Spellblade falling behind other masteries, we will certainly bump it up in priority.
The polarity of one-shots from normal enemies is never fun, and can be a side effect of infinite scaling (eventually everything scales to a point of one-shots), but from what I was reading, it doesn’t sound like you’re that deep in corruption. In which case, more information about what you’re experiencing, what enemies, and so on can help a lot for both us, and other community members who may have tips and tricks.